二重的

From the research of the kerogen carbon isotopes of the coal-measure strata in some basins of China (the Carbo-Permian in the Ordos basin, the Triassic in the Sichuan basin, the Jurassic in the Jungar basin and Turpan-Hami basin, the Tertiary in the Yingqong basin) it can be indicated that the Type Ⅲ kerogen has a wide δ〓C range from -21. 2‰ to -27. 6‰, averaging -25‰, which is more enriched in 〓C than sapropel and mixed kerogens.

对我国一些含煤盆地（陕甘宁石碳－二叠、四川三叠系、准噶尔侏罗系、吐哈侏罗系、莺琼盆地第三系）的煤系地层干酪根碳同位素研究表明，煤系地层的干酪根碳同位素组成δ〓C值分布范围为－21.2～－27.6‰，说明其变化范围较宽，平均值为－25‰左右，相对腐泥型干酪根和混合型干酪根较明显地富重碳同位素。

Nickel sulfate was the most frequent sensitizer, followed by Thimerosal, Potassium dichromate, Fragrance mix and Formaldehyde. Frequencies of contact allergy to Thiuram mix, Mercapto mix, Imidazolidinyl urea, and bronopol were relatively low.

结果： 1 129 例受试者中，阳性反应747例，阳性反应率较高的变应原依次是：硫酸镍、硫柳汞、重铬酸钾、芳香混合物、甲醛，阳性反应率较低的变应原有：秋兰姆混合物、硫氢基混合物、咪唑烷基尿素、溴硝丙二醇。

The intermediate 2-amino-4-nitrophenol was diazotized and coupled with sodium 2,4-diaminobenzenesulfonate to form the high-strength leather brown RHM C.

制得的2-氨基-4-硝基苯酚经重氮化、与2，4-二氨基苯磺酸偶合，合成出高强度的皮革棕 RHM C.I。

And by our dreams and labors we will redeem the promise of America in the 21st Century.

通过我们的梦想和努力，我们重赎二十一世纪美国的希望。

Repeated eigenvalues occur with high multiplicities in the Laplacian matrices of full binary tree s.

满二叉树的Laplacian矩阵有着高重数的特征值，其中1重复最为频繁。

Recasts are one kind of implicit corrective feedback, and have been proved by many classroom researches to be the most frequently used type of corrective feedback in classroom interaction.

重铸式纠错是一种隐性的纠正反馈语，它已被许多课堂研究证明是教师在二语课堂互动中最常用的一项策略。

A new convenient synthesis of a series of 1-aryl-2-propanones using aromatic amine s as precursors, via diazo reaction and improved Meerwein arylation reaction under mild conditions, was achieved.

以芳香胺为原料，经重氮化和改进的Meerwein芳基取代反应，合成了一系列的1-芳基-2-丙酮，其中1-(3，5-二三氟甲基苯基)-2-丙酮是一个新化合物。

A new monomer,4-hexanoxyl-4′-undecylene-[10]-acyloxyazobenzene was synthesized using the main materials:phenol,underlenic acid,1-bromo- n -hexane, p -nitrophenol,thionyl chloride,by the substitution,reduction,couping and diazotization methods.A new polymer was prepared by hydrosilation reaction of poly (methylhy-drosiloxane) with the monomer.

以苯酚、十一烯酸、正溴己烷、对硝基苯酚和二氯亚砜为主要原料，通过取代、还原、重氮化和偶合等反应，合成了一种新的液晶单体 4-己氧基-4′-十一烯-[10]-酰氧基偶氮苯，并与聚通过硅氢加成生成一种新的高分子液晶。

There are double relations between dialogue and teaching: one is that dialogue is an important way to realize the education purposes, the other is that education brings up excellent dialogists.

对话和教育之间有两重关系，一是对话是实现教育意义的基本方式，二是教育培养优秀的对话者。

Methods: Twenty-four rabbits were randomly divided into three groups:① the control group(group C, n=8): received sternotomy only and no ischemia;② the ischemia/reperfusion group(group I/R, n=8): the left lungs of rabbits were rendered ischemia by ligating the left pulmonary hili for 60 minutes followed by 60 minutes reperfusion;③ the edaravone group(group E, n=8): the left lungs were rendered ischemia for 60 minutes followed by 60 minutes reperfusion, and 10 mg/kg edaravone was administered intravenously 5 minutes prior to ischemia. Blood MDA and SOD were measured. Protein concentrations, WBC count, and PMN percentage in broncho-alveolar lavage fluid were determined. Samples of left lung tissue were sent for determining the left lung dry-to-wet weight ratio and evaluating the pathologic changes.

采用兔肺原位热缺血再灌注损伤模型进行研究。24只大白兔随机分为三组：①对照组(C组， n=8)，开胸后不阻断肺门，静脉缓慢推注生理盐水5ml/kg；②缺血再灌注组(I/R组， n=8)，左肺接受60min的缺血，然后接受60min再灌注，于缺血前5min静脉缓慢推注生理盐水5ml/kg；③依达拉奉干预组(E组， n=8)，于缺血前5min静脉缓慢推注依达拉奉10mg/kg（5ml/kg），左肺接受60min的缺血，然后接受60min再灌注。120min实验结束时，留取各组动物血液标本，测定血浆丙二醛含量及超氧化物歧化酶活性；收集支气管肺泡灌洗液，检测支气管肺泡灌洗液中白细胞计数、中性粒细胞百分比及肺通透性指数；留取肺组织标本，测定肺组织湿、干重量，计算干／湿重比及行肺组织病理检查。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了